JP2010094187A

JP2010094187A - Furniture having top board

Info

Publication number: JP2010094187A
Application number: JP2008265726A
Authority: JP
Inventors: Hideyuki Saito; 秀幸齋藤
Original assignee: Okamura Corp
Current assignee: Okamura Corp
Priority date: 2008-10-14
Filing date: 2008-10-14
Publication date: 2010-04-30
Anticipated expiration: 2028-10-14
Also published as: JP5530615B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a table having a top board wherein a leg body can firmly be connected with the top board by a simple operation without using a connecting member or the like. <P>SOLUTION: The furniture 1 having the top board includes the top board 2 wherein a facing downward hole 6a which opens to the lower side is installed on the lower surface 6e and the leg body 3 which keeps the top board receiving tool 4 for receiving-supporting the lower surface 6e of the top board 2 installed on the upper section. The top board receiving tool 4 includes: an engaging section 10 which can engage with the to-be-engaged section 11c installed on the top board 2; a cam section 7 which can be fitted in the facing downward hole 6a; a pivotal shaft 12 which pivotally supports the cam section 7 and faces the vertical direction; and an operation section 9 for turning the cam section 7 around the pivotal shaft 12. By turning the cam section 7 around the pivotal shaft 12 by the operation section 9 under the state wherein the cam section 7 is fitted in the facing downward hole 6a, the top board receiving tool 4 relatively moves in the horizontal direction to the top board 2, and the engaging section 10 is engaged with the to-be-engaged section 11c, and the leg body 3 is held on the top board 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、下方に向けて開口する下向孔が下面に設けられた天板と、該天板の下面を受支する天板受具が上部に設けられた脚体と、を備える天板付き家具に関する。 The present invention includes a top plate provided with a top plate provided on the lower surface with a downward hole that opens downward, and a leg body provided with a top plate support for receiving and supporting the lower surface of the top plate. Related to furniture with furniture.

従来、この種のテーブルにおいて、家庭や小規模オフィス等にて使用されるものにあっては、天板と脚体との組付作業を使用者が行うケースが多いが、例えばボルト等の連結部材による締め付け作業等が不慣れな使用者の場合、例えば締め付け強度が不十分のまま使用されてしまうと、使用中に脚体が外れる虞があるため危険であるという問題があった。 Conventionally, in this type of table, which is used at home or small offices, the user often performs the assembly work of the top plate and the legs, but for example, connecting a bolt or the like In the case of a user who is unfamiliar with the tightening work using the members, for example, if the user is used with insufficient tightening strength, there is a problem that the leg may come off during use, which is dangerous.

そこで、ボルト等の連結部材等を使用することなく、天板に脚体を連結することができるようにしたものとして、例えば天板の下面に、脚体の上端に突設した係合ボルトを嵌挿可能な被係合穴を設けるとともに、該被係合穴内に嵌挿された係合ボルトに対応する受穴を有する締め付け固定板を設け、被係合穴に係合ボルトを嵌挿した状態でレバー操作により該締め付け固定板を回転させ、被係合穴に嵌挿された係合ボルトの頭部が係合されることで、天板下面に脚体が固定されるようにしたものがある（例えば、特許文献１参照）。 Therefore, for example, it is possible to connect the leg to the top plate without using a connecting member such as a bolt. A fitting fixing hole having a receiving hole corresponding to the engaging bolt inserted into the engaged hole is provided, and an engaging bolt is inserted into the engaged hole. The fastening plate is rotated by lever operation in the state, and the head of the engagement bolt inserted in the engaged hole is engaged so that the leg is fixed to the lower surface of the top plate (For example, refer to Patent Document 1).

また、天板下面に形成された被係合部としての被係合溝に挿通可能な係合ピンが、脚体の上端に回動自在に設けた円盤上に突設され、前記係合ピンを被係合溝に挿通した状態でレバー操作により円盤を回転させ、係合ピンの頭部が被係合溝に係合されることで、天板下面に脚体が連結されるものがある（例えば、特許文献２参照）。 Further, an engagement pin that can be inserted into an engaged groove formed as an engaged portion formed on the lower surface of the top plate protrudes on a disk provided rotatably at the upper end of the leg, and the engagement pin In some cases, the disc is rotated by operating the lever while the rod is inserted into the engaged groove, and the leg is connected to the lower surface of the top plate by engaging the head of the engaging pin with the engaged groove. (For example, refer to Patent Document 2).

特開平４−２２８９０８号公報（第１−３図）JP-A-4-228908 (FIG. 1-3) 特許登録第２８８５１２８号公報（第１，２図）Patent Registration No. 2885128 (Figs. 1 and 2)

しかしながら、上記特許文献１及び２に記載の連結装置にあっては、天板に対して脚体を連結するための係合部（例えば特許文献２の係合ピン）または被係合部（例えば特許文献１の被係合穴）のうち一方を回動自在に支持する回動機構に、係合部と被係合部とにかかる負荷が直接伝達されるため、回動機構が破損しやすいという問題があった。 However, in the connecting devices described in Patent Documents 1 and 2, an engaging part (for example, an engaging pin in Patent Document 2) or an engaged part (for example, an engaging pin for connecting a leg to the top plate) Since the load applied to the engaging portion and the engaged portion is directly transmitted to the rotating mechanism that rotatably supports one of the engaged holes in Patent Document 1, the rotating mechanism is easily damaged. There was a problem.

本発明は、このような問題点に着目してなされたもので、連結部材等を使用することなく、簡単な操作で、しかも天板に対して脚体を強固に連結することができる天板付きテーブルを提供することを目的とする。 The present invention has been made paying attention to such problems, and it is possible to connect the legs firmly to the top plate with a simple operation without using a connecting member or the like. The purpose is to provide an attached table.

前記課題を解決するために、本発明の請求項１に記載の天板付き家具は、
下方に向けて開口する下向孔が下面に設けられた天板と、該天板の下面を受支する天板受具が上部に設けられた脚体と、を備える天板付き家具であって、
前記天板受具は、
前記天板に設けられた被係合部に係合可能な係合部と、
前記下向孔に嵌合可能なカム部と、
前記カム部を枢支する上下方向を向く枢軸と、
前記カム部を前記枢軸周りに回動させるための操作部と、
を備え、
前記下向孔内に前記カム部を嵌合した状態で、前記操作部により前記カム部を前記枢軸周りに回動することにより、前記天板に対して前記天板受具が水平方向に相対移動して前記係合部が前記被係合部に係合され、前記脚体が前記天板に連結されることを特徴としている。
この特徴によれば、カム部を下向孔に嵌合した状態で操作部を操作することにより、カム部が下向孔の内壁にガイドされた状態で回動し、下向孔内において枢軸が移動することで、該枢軸が設けられた天板受具が天板に対して水平方向に相対移動して係合部が被係合部に係合されるため、ボルト等の固着部を使用することなく、カム部を下向孔内に嵌合して操作部を操作するだけで、脚体を天板に容易に連結することができる。 In order to solve the above-mentioned problem, the furniture with a top plate according to claim 1 of the present invention,
A furniture with a top plate, comprising: a top plate having a downward hole that opens downwardly on a lower surface; and a leg that has a top plate support that supports the lower surface of the top plate provided on the top. And
The top plate holder is
An engaging portion engageable with an engaged portion provided on the top plate;
A cam portion that can be fitted into the downward hole;
A pivot that faces the up and down direction to pivotally support the cam portion;
An operating portion for rotating the cam portion around the pivot;
With
When the cam portion is fitted in the downward hole, the cam portion is rotated around the pivot axis by the operation portion, so that the top plate holder is relative to the top plate in the horizontal direction. It moves, the said engaging part is engaged with the said to-be-engaged part, and the said leg is connected with the said top plate, It is characterized by the above-mentioned.
According to this feature, by operating the operating portion with the cam portion fitted in the downward hole, the cam portion rotates while being guided by the inner wall of the downward hole, and the pivot is pivoted in the downward hole. Since the top plate holder provided with the pivot moves relative to the top plate in the horizontal direction and the engaging portion is engaged with the engaged portion, the fixing portion such as a bolt is moved. Without using, the leg can be easily connected to the top plate simply by fitting the cam portion into the downward hole and operating the operation portion.

本発明の請求項２に記載の天板付き家具は、請求項１に記載の天板付き家具であって、
前記係合部が前記被係合部に係合された係合状態において、前記下向孔内における前記カム部の回動を規制する規制手段が設けられていることを特徴としている。
この特徴によれば、係合状態において、カム部が逆回動して係合部と被係合部との係合が解除されてしまうことが防止される。 The furniture with a top plate according to claim 2 of the present invention is the furniture with a top plate according to claim 1,
In the engaged state in which the engaging portion is engaged with the engaged portion, there is provided a restricting means for restricting the rotation of the cam portion in the downward hole.
According to this feature, in the engaged state, it is possible to prevent the cam portion from rotating backward and releasing the engagement between the engaging portion and the engaged portion.

本発明の請求項３に記載の天板付き家具は、請求項１または２に記載の天板付き家具であって、
前記下向孔は、前記天板の内方を向く一対の短辺及び一対の長辺からなる略長方形状に形成され、
前記カム部は、一対の等辺及び前記下向孔の短辺よりも若干長寸に形成された長辺からなる略二等辺三角形状に形成され、
前記規制手段は、前記下向孔の長辺と前記カム部の長辺とから構成されている。
この特徴によれば、下向孔内でカム部が回動する際に、カム部の長辺の両端が下向孔の一対の長辺と摺接するときに抵抗がかかるようになるため、係合状態において、カム部が逆回動して係合部と被係合部との係合が解除されてしまうことが防止される。 The furniture with a top plate according to claim 3 of the present invention is the furniture with a top plate according to claim 1 or 2,
The downward hole is formed in a substantially rectangular shape composed of a pair of short sides and a pair of long sides facing inward of the top plate,
The cam portion is formed in a substantially isosceles triangle shape composed of a pair of equal sides and a long side formed slightly longer than the short side of the downward hole,
The restricting means includes a long side of the downward hole and a long side of the cam portion.
According to this feature, when the cam portion rotates in the downward hole, resistance is applied when both ends of the long side of the cam portion are in sliding contact with the pair of long sides of the downward hole. In the combined state, the cam portion is prevented from rotating reversely and the engagement between the engaging portion and the engaged portion being released.

本発明の請求項４に記載の天板付き家具は、請求項１ないし３のいずれかに記載の天板付き家具であって、
前記操作部は、前記カム部から水平方向に連設された操作片の端部に突設されていることを特徴としている。
この特徴によれば、カム部を小さい力で回動することができるばかりか、操作部の回動力をカム部に直接伝達することができる。 The furniture with a top plate according to claim 4 of the present invention is the furniture with a top plate according to any one of claims 1 to 3,
The operation portion is characterized in that it protrudes from an end portion of an operation piece provided in a horizontal direction from the cam portion.
According to this feature, not only can the cam portion be rotated with a small force, but also the rotational force of the operation portion can be directly transmitted to the cam portion.

本発明の請求項５に記載の天板付き家具は、請求項４に記載の天板付き家具であって、
前記操作部は、前記天板受具の下面よりも下方に突出しないように設けられていることを特徴としている。
この特徴によれば、操作部が使用者の足に当たるなどしてカム部が不用意に回動し、係合状態が解除されることが防止される。 The furniture with a top plate according to claim 5 of the present invention is the furniture with a top plate according to claim 4,
The operation portion is provided so as not to protrude downward from the lower surface of the top plate holder.
According to this feature, it is prevented that the cam portion is inadvertently rotated due to the operation portion hitting the user's foot and the engagement state is released.

本発明に係る天板付き家具を実施するための最良の形態を実施例に基づいて以下に説明する。 BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out furniture with a top plate according to the present invention will be described below based on examples.

本発明の実施例を図面に基づいて説明すると、先ず図１は、本発明の実施例における机の全体像を示す斜視図であり、図２（ａ）は、天板と脚体との連結部を示す分解斜視図であり、図２（ｂ）は、天板と脚体との連結部を示す斜視図であり、図３（ａ）は、図２（ｂ）におけるＡ−Ａ断面図であり、図３（ｂ）は、図２（ｂ）におけるＢ−Ｂ断面図であり、図３（ｃ）は、図３（ａ）におけるＣ−Ｃ断面図であり、図４（ａ）は、天板の下面角部を示す斜視図であり、図４（ｂ）は、図４（ａ）におけるＤ−Ｄ断面図であり、図５（ａ）は、カム部が下向孔に嵌合している状態を示す平面図及びカム部のＧ−Ｇ端面図であり、図５（ｂ）は、カム部が下向孔内で回動する状態を示す平面図及びカム部のＨ−Ｈ端面図であり、図５（ｃ）は、天板受具が天板に取り付けられた状態を示す平面図及びカム部のＩ−Ｉ端面図であり、図６は、図５（ａ）におけるＥ−Ｅ断面図であり、図７は、図５（ｃ）におけるＦ−Ｆ断面図である。 An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a perspective view showing an overall image of a desk in an embodiment of the present invention, and FIG. 2 (a) is a connection between a top plate and a leg. 2 (b) is a perspective view showing a connecting portion between the top plate and the leg, and FIG. 3 (a) is a cross-sectional view taken along line AA in FIG. 2 (b). 3 (b) is a cross-sectional view taken along the line BB in FIG. 2 (b), FIG. 3 (c) is a cross-sectional view taken along the line CC in FIG. 3 (a), and FIG. FIG. 4B is a perspective view showing a lower surface corner of the top plate, FIG. 4B is a sectional view taken along the line DD in FIG. 4A, and FIG. FIG. 5B is a plan view showing a fitted state and a GG end view of the cam portion, and FIG. 5B is a plan view showing a state in which the cam portion rotates in the downward hole and H of the cam portion. -H end view, FIG. FIG. 6 is a plan view showing a state in which the plate support is attached to the top plate and an II end view of the cam portion, FIG. 6 is a cross-sectional view taken along line EE in FIG. 5A, and FIG. It is FF sectional drawing in 5 (c).

図１の符号１は、例えば、個人で組立を行い使用する、本発明の適用された天板付き家具としての机である。この机１は、図１に示すように、長方形状の天板２と、天板２の下面四隅を支持する４本の脚体３とを備えている。脚体３の上部には、金属材から成る天板受具４が取り付けられており、これら脚体３は天板受具４を介して天板２を下方から支持している。 Reference numeral 1 in FIG. 1 is, for example, a desk as furniture with a top board to which the present invention is applied, which is assembled and used by an individual. As shown in FIG. 1, the desk 1 includes a rectangular top plate 2 and four legs 3 that support the bottom four corners of the top plate 2. A top plate receiver 4 made of a metal material is attached to the upper portion of the leg body 3, and these leg bodies 3 support the top plate 2 from below through the top plate receiver 4.

図２（ａ）に示すように、脚体３は上下方向に長い角柱である。これら脚体３の上端部には、上方に開口する嵌合凹部３ａが凹設されているとともに、更に、嵌合凹部３ａの底面中央には、上下方向に螺着孔３ｂが穿設されている。 As shown in FIG. 2A, the leg 3 is a prism that is long in the vertical direction. A fitting recess 3a that opens upward is formed at the upper end of these legs 3, and a screwing hole 3b is formed vertically in the center of the bottom of the fitting recess 3a. Yes.

天板受具４は、平面視扇形（図５（ａ）参照）に形成された板状部材からなり、その角部４ａは、内角９０度を成している。角部４ａの下部には、脚体３の嵌合凹部３ａに嵌合する嵌合突部４ｂが設けられている。また、角部４ａには、上下方向に連通する貫通孔４ｃが穿設されている。この貫通孔４ｃには、嵌合凹部３ａと嵌合突部４ｂが嵌合した状態で螺着螺子４ｄが螺着孔３ｂまで挿通されるようになっており、螺着螺子４ｄを螺着することによって、図２（ｂ）に示すように、脚体３の上部に天板受具４が取り付けられる。 The top plate holder 4 is made of a plate-like member formed in a fan shape in plan view (see FIG. 5A), and the corner portion 4a forms an inner angle of 90 degrees. A fitting protrusion 4b that fits into the fitting recess 3a of the leg 3 is provided at the lower portion of the corner 4a. In addition, a through hole 4c that communicates in the vertical direction is formed in the corner 4a. The threaded screw 4d is inserted into the through hole 4c up to the threaded hole 3b in a state in which the fitting recess 3a and the fitting protrusion 4b are fitted, and the screwed screw 4d is screwed. Accordingly, as shown in FIG. 2 (b), the top plate support 4 is attached to the upper portion of the leg 3.

天板受具４の上面側には、板状の操作板５が配置されている。この操作板５は、後述する支持板６に形成されている下向孔６ａに嵌合可能な弾性を有する合成樹脂材から成るカム部７と、図３（ａ）及び図３（ｃ）に示すように、このカム部７から水平方向に延設される板状の操作片８の端部に設けられている操作部９とで構成されている。カム部７は、天板受具４上で水平方向に回動可能なように、上下方向を向く枢軸１２によって軸支されている。そして、操作部９は、操作片８の端部から下方に向けて突設しており、机１を組み立てる使用者等が把持することによって、カム部７の回動を操作可能となっている。 A plate-like operation plate 5 is disposed on the upper surface side of the top plate holder 4. The operation plate 5 includes a cam portion 7 made of a synthetic resin material having elasticity that can be fitted into a downward hole 6a formed in a support plate 6 described later, and FIGS. 3 (a) and 3 (c). As shown, it is composed of an operation portion 9 provided at an end portion of a plate-like operation piece 8 extending from the cam portion 7 in the horizontal direction. The cam portion 7 is pivotally supported by a pivot 12 that faces in the vertical direction so that the cam portion 7 can be rotated in the horizontal direction on the top plate receiver 4. The operation unit 9 projects downward from the end of the operation piece 8 and can be operated to rotate the cam unit 7 by being gripped by a user or the like who assembles the desk 1. .

天板受具４における角部４を挟んで隣り合う２辺は、図５（ａ）に示すように、天板受具４の外側端部である一対の直線状部４ｅとして形成されており、これら直線状部４ｅには、天板２に対して天板受具４を係合させるための係合部１０が設けられている。 As shown in FIG. 5A, two sides adjacent to each other with the corner 4 in the top plate receiver 4 are formed as a pair of linear portions 4e which are outer end portions of the top plate receiver 4. These linear portions 4 e are provided with engaging portions 10 for engaging the top plate receiving tool 4 with the top plate 2.

具体的には、図３（ａ）〜（ｃ）に示すように、２つの直線状部４ｅからは、上方に向かって起立片１０ａが立設されている。そして、起立片１０ａの上端部からは、天板受具４の内側方に向けて各２条ずつ、係合片１０ｂが延設されている。これら係合片１０ｂの下面は、先端部から外側方である起立片１０ａ側に向かって下方に傾斜するテーパー面１０ｃとして形成されている。 Specifically, as shown in FIGS. 3A to 3C, upright pieces 10a are erected upward from the two linear portions 4e. And from the upper end part of the standing piece 10a, the engagement piece 10b is extended by 2 each toward the inner side of the top-plate holder 4. As shown in FIG. The lower surfaces of the engagement pieces 10b are formed as a tapered surface 10c that is inclined downward from the tip portion toward the upright piece 10a side that is the outer side.

このため、これら起立片１０ａと係合片１０ｂとは、縦断面視略Ｌ字形を成し、各直線状部４ｅの全長に亘って延設されており、前述した係合部１０を構成している。尚、図２（ａ）に示すように、起立片１０ａの上面は、天板受具４の角部４ａの上面と面一となる平坦面に形成されている。 For this reason, the upright pieces 10a and the engaging pieces 10b are substantially L-shaped in a longitudinal sectional view, and extend over the entire length of each linear portion 4e, and constitute the engaging portion 10 described above. ing. As shown in FIG. 2A, the upper surface of the upright piece 10 a is formed as a flat surface that is flush with the upper surface of the corner portion 4 a of the top plate holder 4.

天板受具４の上面４ｆは平坦状に形成され、図２（ａ）及び図２（ｂ）に示すように、天板２の下面２ａを受支する本発明における受支面を構成しており、この上面４ｆには、平面視扇形に形成された操作凹部４ｇが凹設されている。この操作凹部４ｇは、天板受具４と同様に内角９０度を成す扇形に形成されており、操作凹部４ｇの角部側には、円柱状の枢支突部４ｈが上方に向かって突設されているとともに、枢支突部４ｈの上面中心には、上下方向を向く挿通孔４ｉが穿設されている。 An upper surface 4f of the top plate receiving tool 4 is formed in a flat shape, and constitutes a receiving surface in the present invention for receiving the lower surface 2a of the top plate 2 as shown in FIGS. 2 (a) and 2 (b). The upper surface 4f is provided with an operation recess 4g formed in a fan shape in plan view. The operation concave portion 4g is formed in a fan shape having an inner angle of 90 degrees similarly to the top plate holder 4, and a columnar pivot support protrusion 4h protrudes upward on the corner side of the operation concave portion 4g. In addition, an insertion hole 4i is formed in the center of the upper surface of the pivot support protrusion 4h so as to face in the vertical direction.

尚、枢支突部４ｈの上下高さ寸法は、図３（ａ）に示すように、操作凹部４ｇの上下高さ寸法よりも短く形成されている。更に、枢支突部４ｈ及び貫通孔４ｃは、特に図示しないが、操作凹部４ｇ及び天板受具４を内角４５度の扇形に２分割する中心線上に配置されている。 In addition, the vertical height dimension of the pivot protrusion 4h is shorter than the vertical height dimension of the operation recess 4g, as shown in FIG. Furthermore, although not shown in particular, the pivot support protrusion 4h and the through hole 4c are disposed on the center line that divides the operation recess 4g and the top plate support 4 into a fan shape having an inner angle of 45 degrees.

操作凹部４ｇの外周端縁部には、図３（ａ）及び図５（ａ）に示すように、操作凹部４ｇの周方向全長に亘って上下に連通する操作溝４ｊが形成されている。また、操作凹部４ｇの底面の周方向略中央には、底面から上方に向けて突設された平面視円弧状の突条４ｋが、操作凹部４ｇの周方向に延設されており、この突条４ｋ上に操作片８が乗り上がるようになっている。 As shown in FIGS. 3 (a) and 5 (a), an operation groove 4j that communicates vertically is formed on the outer peripheral edge of the operation recess 4g over the entire circumferential length of the operation recess 4g. Further, at the substantially center in the circumferential direction of the bottom surface of the operation concave portion 4g, an arc-shaped ridge 4k projecting upward from the bottom surface extends in the circumferential direction of the operation concave portion 4g. An operation piece 8 is ridden on the strip 4k.

操作凹部４ｇ内には、図３（ａ）及び図５（ａ）に示すように、操作板５が配置され、操作板５に設けられているカム部７は、枢支突部４ｈ上に配置される。カム部７は、長辺７ａと、一対の等辺と、からなる略三角柱形状に形成されており、一対の短辺で挟まれている内角側には、上下方向に連通する枢支孔７ｂが穿設され、この枢支孔７ｂを介して挿通孔４ｉに枢軸１２が枢着されている。 As shown in FIGS. 3 (a) and 5 (a), the operation plate 5 is disposed in the operation recess 4g, and the cam portion 7 provided on the operation plate 5 is located on the pivotal protrusion 4h. Be placed. The cam portion 7 is formed in a substantially triangular prism shape having a long side 7a and a pair of equal sides, and a pivotal support hole 7b communicating in the vertical direction is formed on the inner corner side sandwiched between the pair of short sides. The pivot shaft 12 is pivotally attached to the insertion hole 4i through the pivot support hole 7b.

操作部９は、図３（ａ）及び図３（ｃ）に示すように、カム部７が枢支突部４ｈ上に配置されたことによって、操作溝４ｊ内に配置されている。操作部９の上下長さ寸法は、天板受具４の下面よりも下方に突出しない長さ寸法に形成されている。 As shown in FIGS. 3A and 3C, the operation portion 9 is disposed in the operation groove 4j by the cam portion 7 being disposed on the pivotal protrusion 4h. The vertical length of the operation unit 9 is formed to a length that does not protrude downward from the lower surface of the top plate holder 4.

このため、操作溝４ｊから操作部９を操作することで直接カム部７に回動力を伝達することができるばかりか、カム部７を小さい回動力によって回動させることができる。尚、操作片８の上面には、カム部７から操作部９に向けて、２条の摺接片８ａが上方に向けて突設されている。 For this reason, not only can the rotational force be transmitted directly to the cam portion 7 by operating the operation portion 9 from the operation groove 4j, but the cam portion 7 can be rotated by a small rotational force. On the upper surface of the operation piece 8, two sliding contact pieces 8 a are provided so as to project upward from the cam portion 7 toward the operation portion 9.

カム部７の回動角度は、操作片８が当接する操作凹部４ｇの内側面によって約９０度に規制されている。また、図３（ｂ）及び図６に示すように、カム部７を回動させる途中では、操作片８が突条４ｋに乗り上がることで、操作片８の上面に設けられた摺接片８ａが支持板６の下面６ｅに摺接し、操作板８の下面と突条４ｋとの間と、摺接片８と支持板６の下面６ｅとの間に摩擦が発生することにより、操作部９が不用意に回動しないようになっている。 The rotation angle of the cam portion 7 is restricted to about 90 degrees by the inner surface of the operation recess 4g with which the operation piece 8 abuts. Further, as shown in FIGS. 3B and 6, the sliding contact piece provided on the upper surface of the operation piece 8 by the operation piece 8 riding on the protrusion 4 k during the rotation of the cam portion 7. 8 a is in sliding contact with the lower surface 6 e of the support plate 6, and friction is generated between the lower surface of the operation plate 8 and the protrusion 4 k and between the sliding contact piece 8 and the lower surface 6 e of the support plate 6. 9 is prevented from rotating carelessly.

一方、天板２の下面２ａの外周縁部である四隅の角部２ｂには、図４（ａ）に示すように、天板受具４が嵌合する切欠凹部１１が凹設されている。この切欠凹部１１は、天板２の外側方の２方向及び下方に向けて開放する凹部であり、その内部下面には、天板２とは別個に形成された金属製の支持板６が、複数のビスを介して取り付けられている。この支持板６は、切欠凹部１１に取り付けられることで、支持板６の下面が切欠凹部１１の下面６ｅを構成している。 On the other hand, as shown in FIG. 4A, a notch recess 11 into which the top plate support 4 is fitted is formed in the corners 2b at the four corners, which are the outer peripheral edges of the lower surface 2a of the top plate 2. . This notch recess 11 is a recess that opens outward in two directions and downward on the outer side of the top plate 2, and a metal support plate 6 formed separately from the top plate 2 on the inner lower surface thereof, It is attached via multiple screws. The support plate 6 is attached to the notch recess 11 so that the lower surface of the support plate 6 constitutes the lower surface 6 e of the notch recess 11.

この支持板６には、図２（ａ）に示すように、支持板６の上下方向に向けて連通する下向孔６ａが形成されている。この下向孔６ａは、図４（ａ）に示すように、支持板６が切欠凹部１１に取り付けられることで上方面側の開口が閉塞されるようになっており、切欠凹部１１の下面６ｅを構成する支持板６の下面から下方に向けて開口している。 As shown in FIG. 2A, the support plate 6 is formed with a downward hole 6 a that communicates in the vertical direction of the support plate 6. As shown in FIG. 4A, the downward hole 6 a is configured such that the opening on the upper surface side is closed by attaching the support plate 6 to the notch recess 11, and the lower surface 6 e of the notch recess 11. Is opened downward from the lower surface of the support plate 6 constituting the.

切欠凹部１１は、図４（ａ）及び図４（ｂ）に示すように、天板受具４の一対の直線状部４ｅに対応する、天板２の角部２ｂを挟んで隣り合う一対の直線辺部としての天板２の外側面２ｃによって内角９０度をなす扇形に形成されている。また、切欠凹部１１の外側端部である天板２の角部２ｂの外周縁部には、天板受具４の起立片１０ａが嵌合される切欠溝１１ａが設けられている。 As shown in FIG. 4A and FIG. 4B, the notch recesses 11 are adjacent to each other with the corner portions 2 b of the top plate 2 corresponding to the pair of linear portions 4 e of the top plate holder 4. The outer surface 2c of the top plate 2 as a straight side portion is formed in a sector shape having an inner angle of 90 degrees. In addition, a notch groove 11 a into which the upright piece 10 a of the top plate receiving tool 4 is fitted is provided at the outer peripheral edge portion of the corner portion 2 b of the top plate 2 that is the outer end portion of the notch recess 11.

支持板６は、切欠凹部１１を僅かに縮小させた略扇形に形成されている。下向孔６ａは、天板２の内方を向く一対の短辺６ｂ及び一対の長辺６ｃとからなる略長方形状に形成されており、短辺６ｂの長さ寸法は、カム部７の長辺７ａよりも若干短寸に形成されている。 The support plate 6 is formed in a substantially sector shape in which the notch recess 11 is slightly reduced. The downward hole 6 a is formed in a substantially rectangular shape including a pair of short sides 6 b and a pair of long sides 6 c facing inward of the top plate 2. It is formed slightly shorter than the long side 7a.

そして、支持板６の外側面６ｄは、天板２の外側面２ｃと切欠溝１１ａの側面１１ｂとの間に配置されている。このため、支持板６と切欠溝１１ａとの間に、支持板６と切欠溝１１ａとの全周に亘る長さを有し、天板２の外側方に開口する本発明における被係合部としての被係合溝１１ｃを容易に形成することができる。 And the outer surface 6d of the support plate 6 is arrange | positioned between the outer surface 2c of the top plate 2, and the side surface 11b of the notch groove 11a. For this reason, between the support plate 6 and the notch groove 11a, it has the length over the perimeter of the support plate 6 and the notch groove 11a, and the to-be-engaged part in this invention opened to the outer side of the top plate 2 The engaged groove 11c can be easily formed.

このように切欠凹部１１を構成することで、天板受具４は、図５(ａ)及び図６に示すように、上面４ｆを切欠凹部１１の下面６ｅに当接されるとともに、下向孔６ａにカム部７を嵌合し、係合片１０ｂが被係合溝１１ｃに係合していない非係合状態から、操作部９を操作溝４ｊ内で移動させることで、カム部７は、その周面が下向孔６ａの内壁でガイドされた状態で回動（自転）する。このため、枢軸１２は、カム部７の回動によって天板２の内側に向かって水平に移動する。つまり、下向孔６ａとカム部７枢軸１２とは、天板受具４を天板２の内側方に向かって移動させるための、本実施例における移動手段を構成している。 By configuring the notch recess 11 in this manner, the top plate support 4 is configured so that the upper surface 4f is brought into contact with the lower surface 6e of the notch recess 11 as shown in FIG. 5A and FIG. The cam portion 7 is moved in the operation groove 4j from the disengaged state where the cam portion 7 is fitted into the hole 6a and the engagement piece 10b is not engaged with the engaged groove 11c. Rotates (rotates) with its peripheral surface guided by the inner wall of the downward hole 6a. For this reason, the pivot 12 moves horizontally toward the inside of the top plate 2 by the rotation of the cam portion 7. That is, the downward hole 6 a and the cam portion 7 pivot 12 constitute a moving means in the present embodiment for moving the top plate receiver 4 toward the inside of the top plate 2.

このとき、枢軸１２の天板２の内側方に向かっての移動によって天板受具４が天板２の内側方に向かって天板２の下面２ａに対して水平に相対移動させられ、図５（ｃ）及び図７に示す係合片１０ｂが、テーパー面１０ｃによって支持板６に摺接しながら被係合溝１１ｃに係合することで、係合片１０ｂは上下方向から被係合溝１１ｃによって締め付けられ、天板受具４の上下方向のがたつきを抑えることができる。 At this time, the top plate receiver 4 is moved horizontally relative to the lower surface 2a of the top plate 2 toward the inner side of the top plate 2 by the movement of the pivot 12 toward the inner side of the top plate 2. The engaging piece 10b shown in FIG. 5C and FIG. 7 engages with the engaged groove 11c while being in sliding contact with the support plate 6 by the tapered surface 10c, so that the engaging piece 10b is engaged with the engaged groove from above and below. It is clamped by 11c, and the rattling of the top plate holder 4 in the vertical direction can be suppressed.

尚、図５（ａ）に示すように、天板受具４が非係合状態である場合のカム部７を回動させる操作部９の操作溝４ｊでの位置を初期位置とし、図５（ｃ）に示すように、天板受具４が係合状態である場合の操作部９の操作溝４ｊでの位置を連結位置とする。 As shown in FIG. 5 (a), the position at the operation groove 4j of the operation portion 9 for turning the cam portion 7 when the top plate holder 4 is in the disengaged state is set as the initial position. As shown to (c), let the position in the operation groove 4j of the operation part 9 when the top-plate holder 4 is an engagement state be a connection position.

下向孔６ａ内に嵌合されたカム部７は、図５（ｂ）に示すように、カム部７の長辺７ａの長さ寸法が下向孔６ａの長辺６ｃよりも短寸に形成されているため、操作部９を初期位置から連結位置に移動させてカム部７を回動させる途中において、下向孔６ａの両長辺６ｃとカム部７の長辺７ａの両端とが摺接し、カム部７の回動に抵抗がかかるようになっている。 As shown in FIG. 5 (b), the cam portion 7 fitted in the downward hole 6a has a length dimension of the long side 7a of the cam portion 7 shorter than the long side 6c of the downward hole 6a. Therefore, the long side 6c of the downward hole 6a and the both ends of the long side 7a of the cam part 7 are in the middle of rotating the cam part 7 by moving the operation part 9 from the initial position to the coupling position. The sliding contact is made and resistance is applied to the rotation of the cam portion 7.

この下向孔６ａの両長辺６ｃとカム部７の長辺７ａの両端との摺接は、操作部９を連結位置から初期位置に向けて移動させて天板受具４を係合状態から非係合状態とする際にも発生するため、天板受具４が係合状態から、カム部７が逆回動して係合部１０と被係合溝１１ｃとの係合が解除されてしまうことが防止される。つまり、カム部７の長辺７ａと下向孔６ａの両長辺６ｃとは、カム部７の回動を規制するための、本発明における規制手段を構成している。 The sliding contact between both long sides 6c of the downward hole 6a and both ends of the long side 7a of the cam portion 7 moves the operating portion 9 from the coupling position toward the initial position, and the top plate holder 4 is engaged. Since the top plate support 4 is in the engaged state, the cam portion 7 is reversely rotated to release the engagement between the engaging portion 10 and the engaged groove 11c. Is prevented. That is, the long side 7a of the cam portion 7 and the long sides 6c of the downward hole 6a constitute a restricting means in the present invention for restricting the rotation of the cam portion 7.

次に、天板２に対する脚体３の連結方法及び作用を説明すると、まず、図５（ａ）及び図６に示すように、天板２の下面２ａを上方に向くように裏返す。そして、天板受具４の上面４ｆを下向きにした状態で、該上面４ｆを切欠凹部１１の下面６ｅに当接させるとともに、下向孔６ａにカム部７を嵌合させ、天板受具４を天板２のやや外側方位置にセットして非係合状態とする。このとき、操作部９は初期位置に配置されており、枢軸１２は下向孔６ａにおける外側の長辺６ｃ寄りに位置している。 Next, the connection method and operation of the leg 3 with respect to the top plate 2 will be described. First, as shown in FIGS. 5 (a) and 6, the lower surface 2a of the top plate 2 is turned upside down. Then, with the upper surface 4f of the top plate receiver 4 facing downward, the upper surface 4f is brought into contact with the lower surface 6e of the notch recess 11, and the cam portion 7 is fitted into the downward hole 6a, so that the top plate receiver 4 is set at a slightly outside position of the top plate 2 to be in a disengaged state. At this time, the operation part 9 is arranged at the initial position, and the pivot 12 is located near the outer long side 6c in the downward hole 6a.

次いで、操作部９を初期位置から操作溝４ｊに沿って連結位置に向けて移動させると、図５（ｂ）に示すように、カム部７は、下向孔６ａの内壁により周囲がガイドされた状態で回転（自転）する。具体的には、カム部７の周面における長辺７ａの両端が下向孔６ａの両長辺６ｃと摺接しながら回動する。このとき、長辺７ａは下向孔６ａの短辺６ｂよりも若干長寸であることにより、カム部７の周面における長辺７ａの両端が僅かに内側に凹み（弾性変形する）、これにより回動に若干の抵抗が付与される。また、枢軸１２も天板２の内側に向けて移動を開始する。 Next, when the operating portion 9 is moved from the initial position toward the connecting position along the operating groove 4j, the cam portion 7 is guided by the inner wall of the downward hole 6a as shown in FIG. 5B. Rotate (rotate) in the Specifically, both ends of the long side 7a on the peripheral surface of the cam portion 7 rotate while being in sliding contact with both the long sides 6c of the downward hole 6a. At this time, since the long side 7a is slightly longer than the short side 6b of the downward hole 6a, both ends of the long side 7a on the peripheral surface of the cam portion 7 are slightly recessed inward (elastically deformed). This gives a slight resistance to the rotation. The pivot 12 also starts moving toward the inside of the top plate 2.

また、このとき、操作板５は操作凹部４ｇの底面に配置された突条４ｋに乗り上がるとともに、操作片８の上面に設けられた２条の摺接片８ａは、切欠凹部１１の下面６ｅに当接している。このため、操作板５は上方と下方から抵抗を受けながら摺接移動する。更に、係合片１０ｂはテーパー面１０ｃを支持板６に摺接させながら被係合溝１１ｃに係合していくので、係合片１０ｂが非係合部１１ｃに係合していくにつれて支持板６と天板２とから係合片１０ｂにかかる摩擦力が増大していく。 At this time, the operation plate 5 rides on the protrusion 4k disposed on the bottom surface of the operation recess 4g, and the two sliding contact pieces 8a provided on the upper surface of the operation piece 8 are connected to the lower surface 6e of the notch recess 11. Abut. For this reason, the operation plate 5 is slidably moved while receiving resistance from above and below. Further, the engaging piece 10b is engaged with the engaged groove 11c while the taper surface 10c is slidably contacted with the support plate 6, so that the engaging piece 10b is supported as the engaging piece 10b is engaged with the non-engaging portion 11c. The frictional force applied to the engaging piece 10b from the plate 6 and the top plate 2 increases.

そして、図５（ｃ）に示すように、操作部９が連結位置に到達すると、枢軸１２が内側の長辺６ｃ寄りまで移動され、天板受具４は係合片１０ｂの被係合溝１１ｃに係合する係合状態となり、天板受具４が切欠凹部１１に連結され、脚体３の天板２への取り付けが完了する。 And as shown in FIG.5 (c), when the operation part 9 reaches | attains a connection position, the pivot 12 will be moved to inner side near the long side 6c, and the top plate holder 4 will be the to-be-engaged groove | channel of the engagement piece 10b. The top plate support 4 is connected to the notch recess 11 and the attachment of the leg 3 to the top plate 2 is completed.

このとき、下向孔６ａ内で約９０度回転したカム部７の周面の一部（長辺６ｃとの対向部）が下向孔６ａの内壁に当接してガイドされていることで、天板２に対する天板受具４の水平移動、すなわち、被係合溝１１ｃに対する係合片１０ｂの係合が解除される方向への水平移動が規制されることにより、被係合溝１１ｃと係合片１０ｂの係合との係合状態の解除が防止される。 At this time, a part of the circumferential surface of the cam portion 7 rotated about 90 degrees in the downward hole 6a (a portion facing the long side 6c) is in contact with and guided by the inner wall of the downward hole 6a. By restricting the horizontal movement of the top plate support 4 with respect to the top plate 2, that is, the horizontal movement in the direction in which the engagement piece 10b is disengaged from the engaged groove 11c, the engaged groove 11c and Release of the engagement state with the engagement of the engagement piece 10b is prevented.

さらに、被係合溝１１ｃが係合片１０ｂを締め付けることで生じている摩擦力と、操作部９が初期位置に戻ろうとする際にカム部７の長辺７ａの両端が下向孔６ａの両長辺６ｃに摺接することにより発生する摩擦力と、操作片８が突条４ｋに乗り上がることにより操作片８の上下で発生する摩擦力と、によりカム部７の逆回転が防止されるため、被係合溝１１ｃと係合片１０ｂの係合との係合状態が不用意に解除され、天板２から脚体３が離脱されることがない。 Further, the frictional force generated by the engaged groove 11c tightening the engaging piece 10b and the both ends of the long side 7a of the cam portion 7 when the operating portion 9 tries to return to the initial position are the downward holes 6a. The reverse rotation of the cam portion 7 is prevented by the frictional force generated by sliding contact with both long sides 6c and the frictional force generated above and below the operation piece 8 when the operation piece 8 rides on the protrusion 4k. Therefore, the engagement state between the engaged groove 11c and the engagement piece 10b is inadvertently released, and the leg 3 is not detached from the top plate 2.

また、係合片１０ｂの被係合溝１１ｃへの係合と同時に起立片１０ａが切欠溝１１ａに嵌合され、天板２の角部２ｂにおいて、天板受具４の直線状部４ｅと天板２の外側面２ｃとが略面一となるため、天板２の側周面に天板受具４の一部が突出して外観体裁が損なわれることがない。 Further, the upright piece 10a is fitted into the notch groove 11a simultaneously with the engagement of the engagement piece 10b with the engaged groove 11c, and at the corner 2b of the top plate 2, the linear portion 4e of the top plate support 4 and Since the outer surface 2c of the top plate 2 is substantially flush with the outer surface 2c of the top plate 2, a part of the top plate support 4 protrudes from the side peripheral surface of the top plate 2 and the appearance appearance is not impaired.

上述のように天板２の４箇所の角部２ｂに脚体３が取り付けられた机１は、天板２の上面が上方を向くように再び裏返され、図１に示すように、天板２を４本の脚体３によって下方から支持する状態とする。尚、このとき、天板受具４から下方に操作部９が突出していないので、操作部９が机１の使用者の足に当たるなどしてカム部７が不用意に逆回動し、天板受具４の係合状態が解除されることが防止されている。 As described above, the desk 1 with the legs 3 attached to the four corners 2b of the top plate 2 is turned over again so that the top surface of the top plate 2 faces upward. As shown in FIG. 2 is supported by the four legs 3 from below. At this time, since the operation unit 9 does not protrude downward from the top plate holder 4, the cam unit 7 is inadvertently rotated in the reverse direction when the operation unit 9 hits the leg of the user of the desk 1, etc. The engagement state of the plate holder 4 is prevented from being released.

以上説明したように、本発明の実施例としての机１では、天板受具４は、天板２に設けられた被係合溝１１ｃに係合可能な係合部１０と、下向孔６ａに嵌合可能なカム部７と、カム部７を枢支する上下方向を向く枢軸１２と、カム部７を枢軸１２周りに回動させるための操作部９と、を備え、下向孔６ａ内にカム部７を嵌合した状態で、操作部９によりカム部７を枢軸１２周りに回動することにより、天板２に対して天板受具４が水平方向に相対移動して係合部１０が被係合溝１１ｃに係合され、脚体３が天板２に保持されることで、カム部７を下向孔６ａに嵌合した状態で操作部９を操作することにより、カム部７が下向孔６ａの長辺６ｃ及び短辺６ｂにガイドされた状態で回動し、下向孔６ａ内において枢軸１２が移動することで、枢軸１２が設けられた天板受具４が天板２に対して水平方向に相対移動して係合部１０が被係合溝１１ｃに係合されるため、ボルト等の固着部を使用することなく、カム部７を下向孔６ａ内に嵌合して操作部９を操作するだけで、脚体３を天板２に容易に連結することができる。 As described above, in the desk 1 as an embodiment of the present invention, the top plate receiver 4 includes the engaging portion 10 that can be engaged with the engaged groove 11c provided in the top plate 2, and the downward hole. A cam portion 7 that can be fitted to 6a, a pivot shaft 12 that supports the cam portion 7 in the vertical direction, and an operation portion 9 that rotates the cam portion 7 about the pivot shaft 12; In a state where the cam portion 7 is fitted in 6 a, the top plate receiver 4 is moved relative to the top plate 2 in the horizontal direction by rotating the cam portion 7 around the pivot 12 by the operation portion 9. The engaging portion 10 is engaged with the engaged groove 11c, and the leg 3 is held by the top plate 2, so that the operating portion 9 is operated in a state where the cam portion 7 is fitted in the downward hole 6a. Thus, the cam portion 7 rotates while being guided by the long side 6c and the short side 6b of the downward hole 6a, and the pivot 12 moves in the downward hole 6a. Since the top plate support 4 provided with 2 is moved relative to the top plate 2 in the horizontal direction and the engaging portion 10 is engaged with the engaged groove 11c, a fixing portion such as a bolt is used. Instead, the leg 3 can be easily connected to the top plate 2 simply by fitting the cam portion 7 into the downward hole 6a and operating the operation portion 9.

また、係合部１０が形成された天板受具４を、カム部７の回動操作により切欠凹部１１の下面６ｅに対してスライドさせることにより係合部１０を被係合溝１１ｃに係合させることができるため、従来のように係合部１０自体を回動して係合させるものに比べて、係係合部１０や被係合溝１１ｃの剛性を高めることができ、また、回動させる必要があるカム部７そのものには大きな負荷が加わることがないので、天板２に対して脚体３を強固に連結することができる。 Further, the top plate holder 4 on which the engaging portion 10 is formed is slid with respect to the lower surface 6e of the notch recess portion 11 by rotating the cam portion 7, thereby engaging the engaging portion 10 with the engaged groove 11c. Since the engagement portion 10 itself can be rotated and engaged as in the prior art, the rigidity of the engagement engagement portion 10 and the engaged groove 11c can be increased. Since a large load is not applied to the cam portion 7 itself that needs to be rotated, the leg 3 can be firmly connected to the top plate 2.

また、天板２の下面に切欠凹部１１が形成されていることで、天板２に対する脚体３の連結位置を容易に決定できるとともに、天板受具４の一部が天板２の外側面よりも外側に張り出すように受支面としての天板受具４の上面４ｆを切欠凹部１１の下面６ｅに当接させた状態で操作部９を操作することにより、天板受具４が天板２の内側に向けてスライド移動し、これにより係合部１０が天板２の外側方から被係合溝１１ｃに係合されるため、脚体３を天板２に容易に連結することができる。 Further, since the notch recess 11 is formed on the lower surface of the top plate 2, the connecting position of the leg 3 with respect to the top plate 2 can be easily determined, and a part of the top plate support 4 is attached to the outside of the top plate 2. By operating the operating portion 9 in a state where the upper surface 4f of the top plate receiving member 4 serving as a support surface is in contact with the lower surface 6e of the notch recess 11 so as to project outward from the side surface, the top plate receiving device 4 Slides toward the inside of the top plate 2, whereby the engaging portion 10 is engaged with the engaged groove 11 c from the outside of the top plate 2, so that the leg 3 is easily connected to the top plate 2. can do.

つまり、係合片１０ｂが内向き水平方向に延設されていることで、係合片１０ｂが被係合溝１１ｃに係合した係合状態において、天板２に対する脚体３の離脱方向（下方）への移動が確実に規制され、水平方向への移動が移動手段としてのカム部７と下向孔６ａとの当接にて規制されるため、天板２に対して脚体３をがたつきなく連結することができる。 That is, the engagement piece 10b is extended inwardly in the horizontal direction, so that in the engaged state where the engagement piece 10b is engaged with the engaged groove 11c, the direction in which the leg 3 is detached from the top plate 2 ( Downward movement) is reliably restricted, and movement in the horizontal direction is restricted by the contact between the cam portion 7 as the moving means and the downward hole 6a. Can be connected without rattling.

以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。 Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

例えば、前記実施例では、天板受具４の起立片１０ａから、天板受具４の内側方に向けて係合片１０ｂを延設し、天板２の切欠凹部１１に、天板２の外側方に開口する被係合溝１１ｃを形成して、係合片１０ｂが被係合部に係合可能としたが、下向孔６ａ内でカム部７を回動させることで天板受具４を天板２に対して係合可能であれば、係合部や被係合部の形成位置や形態は上記のものに限定されるものではなく、例えば、係合部を天板受具４の上面４ｆから上方に向かって立設した係合ピンとするとともに、被係合部を切欠凹部１１の下面６ｅに形成したダルマ孔とし、該ダルマ孔に下方から係合ピンを挿入した状態で、カム部７を下向孔６ａ内で回動して天板受具４を天板２の内側に移動させることで、係合ピンがダルマ孔内で係合されるものであってもよい。 For example, in the above-described embodiment, the engagement piece 10b is extended from the standing piece 10a of the top plate holder 4 toward the inside of the top plate holder 4, and the top plate 2 is inserted into the notch recess 11 of the top plate 2. An engagement groove 11c that opens outward is formed so that the engagement piece 10b can be engaged with the engagement portion. By rotating the cam portion 7 in the downward hole 6a, the top plate As long as the receiving device 4 can be engaged with the top plate 2, the positions and forms of the engaging portion and the engaged portion are not limited to those described above. The engaging pin is erected upward from the upper surface 4f of the support 4 and the engaged portion is a Dalma hole formed in the lower surface 6e of the notch recess 11, and the engaging pin is inserted into the Dalma hole from below. In this state, by rotating the cam portion 7 in the downward hole 6a and moving the top plate receiving tool 4 to the inside of the top plate 2, the engagement pin is engaged in the dharma hole. It may be the one.

また、前記実施例では、天板２の下面２ａの角部２ｂに切欠凹部１１を形成したが、切欠凹部を形成する場所は天板２の下面２ａの外側面２ｃ側であってもよい。尚、この場合は、天板受具は内角を成さずに形成されるため、係合部は天板２の外側面２ｃ側の外側端部から一方に向けて延設されるので、天板受具４の天板２の内側方の端部に更に係合部を設けるとともに、切欠凹部内にこの係合部を係合する被係合部を形成し、天板受具が天板２に安定して保持されるようにしてもよい。 Moreover, in the said Example, although the notch recessed part 11 was formed in the corner | angular part 2b of the lower surface 2a of the top plate 2, the place which forms a notch recessed part may be the outer surface 2c side of the lower surface 2a of the top plate 2. FIG. In this case, since the top plate holder is formed without forming an inner angle, the engaging portion extends from the outer end portion on the outer surface 2c side of the top plate 2 toward one side. An engaging portion is further provided at the inner end of the top plate 2 of the plate holder 4 and an engaged portion is formed in the notch recess to engage the engaging portion. 2 may be stably held.

また、前記実施例では、脚体３は天板２に形成された切欠凹部１１に連結されていたが、天板２の下面に下向孔６ａを形成し、下面に直接天板受具４を連結してもよい。 Moreover, in the said Example, although the leg 3 was connected with the notch recessed part 11 formed in the top plate 2, the downward hole 6a is formed in the lower surface of the top plate 2, and the top plate holder 4 is directly formed in the lower surface. May be connected.

また、前記実施例では、天板付き家具を机１として説明したが、天板と該天板を下方から支持する脚体を有する家具であれば、例えば椅子や収納棚等であってもよい。 Moreover, in the said Example, although the furniture with a top plate was demonstrated as the desk 1, if it is furniture which has a leg which supports a top plate and this top plate from the downward direction, a chair, a storage shelf, etc. may be sufficient, for example. .

また、前記実施例では、天板２を長方形状に形成し、天板２の４隅である角部２ｂに脚体を天板受具４を介して取り付けたが、天板２の形状は四角形以外の多角形であってもよく、また、角部を有さない円形であってもよい。 Moreover, in the said Example, although the top plate 2 was formed in rectangular shape and the leg was attached to the corner | angular part 2b which is four corners of the top plate 2 via the top plate holder 4, the shape of the top plate 2 is It may be a polygon other than a rectangle, or may be a circle having no corners.

また、前記実施例では、カム部７を長辺７ａと一対の等辺とからなる平面視略三角形状に形成したが、枢軸１２からカム部の周面までの距離が一定ではない偏心部材であれば、例えば、カム部７の形状を平面視円形の円柱とし、該円形の中心を避けてカム部を枢軸によって枢支するようにしてもよい。 In the above embodiment, the cam portion 7 is formed in a substantially triangular shape in plan view consisting of the long side 7a and a pair of equal sides. However, the cam portion 7 may be an eccentric member whose distance from the pivot 12 to the peripheral surface of the cam portion is not constant. For example, the shape of the cam portion 7 may be a circular cylinder in plan view, and the cam portion may be pivotally supported by a pivot while avoiding the center of the circle.

実施例における机の全体像を示す斜視図である。It is a perspective view which shows the whole image of the desk in an Example. （ａ）は、天板と脚体との連結部を示す分解斜視図であり、（ｂ）は、天板と脚体との連結部を示す斜視図である。(A) is a disassembled perspective view which shows the connection part of a top plate and a leg body, (b) is a perspective view which shows the connection part of a top plate and a leg body. （ａ）は、図２（ｂ）におけるＡ−Ａ断面図であり、（ｂ）は、図２（ｂ）におけるＢ−Ｂ断面図であり、（ｃ）は、図３（ａ）におけるＣ−Ｃ断面図である。(A) is AA sectional drawing in FIG.2 (b), (b) is BB sectional drawing in FIG.2 (b), (c) is C in FIG.3 (a). It is -C sectional drawing. （ａ）は、天板の下面角部を示す斜視図であり（ｂ）は、図４（ａ）におけるＤ−Ｄ断面図である。(A) is a perspective view which shows the lower surface corner | angular part of a top plate, (b) is DD sectional drawing in Fig.4 (a). （ａ）は、カム部が下向孔に嵌合している状態を示す平面図及びカム部のＧ−Ｇ端面図であり、（ｂ）は、カム部が下向孔内で回動する状態を示す平面図及びカム部のＨ−Ｈ端面図であり、（ｃ）は、天板受具が天板に取り付けられた状態を示す平面図及びカム部のＩ−Ｉ端面図である。(A) is the top view which shows the state which the cam part is fitting to the downward hole, and GG end elevation of a cam part, (b) is a cam part rotating in a downward hole. It is the top view and HH end view of a cam part which show a state, (c) is the top view and II end view of a cam part which show the state in which the top plate holder was attached to the top plate. 図５（ａ）におけるＥ−Ｅ断面図である。It is EE sectional drawing in Fig.5 (a). 図５（ｃ）におけるＦ−Ｆ断面図である。It is FF sectional drawing in FIG.5 (c).

Explanation of symbols

１机（天板付き家具）
２天板
２ｃ外側面（直線辺部）
３脚体
４天板受具
４ｅ直線状部
４ｆ上面（受支面）
６支持板
６ａ下向孔（移動手段）
６ｃ長辺（規制手段）
６ｅ下面
７カム部（移動手段）
７ａ長辺（規制手段）
９操作部
１０係合部
１０ａ起立片
１０ｂ係合片
１１切欠凹部
１１ａ切欠溝
１１ｃ被係合溝（被係合部）
１２枢軸（移動手段） 1 desk (furniture with a top plate)
2 Top plate 2c Outside surface (straight side)
3 Leg 4 Top plate support 4e Linear part 4f Upper surface (supporting surface)
6 Support plate 6a Down hole (moving means)
6c Long side (regulatory means)
6e Lower surface 7 Cam part (moving means)
7a Long side (regulatory means)
9 Operation part 10 Engagement part 10a Standing piece 10b Engagement piece 11 Notch recessed part 11a Notch groove 11c Engagement groove (engaged part)
12 Axis (moving means)

Claims

A furniture with a top plate, comprising: a top plate having a downward hole that opens downwardly on a lower surface; and a leg that has a top plate support that supports the lower surface of the top plate provided on the top. And
The top plate holder is
An engaging portion engageable with an engaged portion provided on the top plate;
A cam portion that can be fitted into the downward hole;
A pivot that faces the up and down direction to pivotally support the cam portion;
An operating portion for rotating the cam portion around the pivot;
With
When the cam portion is fitted in the downward hole, the cam portion is rotated around the pivot axis by the operation portion, so that the top plate holder is relative to the top plate in the horizontal direction. The furniture with a top plate, wherein the furniture is moved, the engaging portion is engaged with the engaged portion, and the leg is connected to the top plate.

2. A restricting means for restricting the rotation of the cam portion in the downward hole is provided in an engaged state in which the engaging portion is engaged with the engaged portion. Furniture with a top plate as described in.

The downward hole is formed in a substantially rectangular shape composed of a pair of short sides and a pair of long sides facing inward of the top plate,
The cam portion is formed in a substantially isosceles triangle shape composed of a pair of equal sides and a long side formed slightly longer than the short side of the downward hole,
The furniture with a top plate according to claim 1 or 2, wherein the restricting means includes a long side of the downward hole and a long side of the cam portion.

The furniture with a top plate according to any one of claims 1 to 3, wherein the operation portion is projected from an end portion of an operation piece provided in a horizontal direction from the cam portion.

The furniture with a top plate according to claim 4, wherein the operation unit is provided so as not to protrude downward from a lower surface of the top plate holder.